NCT06368362

Brief Summary

Cognitive Bias Modification for Interpretation (CBM-I) trains participants to interpret ambiguous information as neutral or benign, rather than interpret it as being related to pain. The goal of this randomised controlled trial was to explore the feasibility and potential clinical benefits of CBM-I in people with chronic pain and also healthy, pain-free individuals.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
84

participants targeted

Target at P50-P75 for not_applicable chronic-pain

Timeline
Completed

Started Nov 2020

Shorter than P25 for not_applicable chronic-pain

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 17, 2020

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2021

Completed
2.9 years until next milestone

First Submitted

Initial submission to the registry

April 4, 2024

Completed
12 days until next milestone

First Posted

Study publicly available on registry

April 16, 2024

Completed
Last Updated

April 16, 2024

Status Verified

April 1, 2024

Enrollment Period

6 months

First QC Date

April 4, 2024

Last Update Submit

April 10, 2024

Conditions

Keywords

Cognitive bias modificationInterpretation bias

Outcome Measures

Primary Outcomes (2)

  • Emotional response to exercise induced pain

    Sensory and emotional pain words from the McGill Pain Questionnaire (MPQ) were presented, grouped as they are on the MPQ. Participants chose one word from each group most representing the pain experienced performing a dynamic arm exercise (rotating their arms in small circles forwards for 10 seconds then backwards for 10 seconds, repeating the process as many times as possible). Participants rated each word from 0 (not at all representative) to 10 (extremely representative) or indicated if none represented their exercise pain. Emotional response to exercise pain was calculated from intensity and representativeness scores. For intensity, words were assigned a numeric score according to MPQ instructions and summed for emotional and sensory words. For representativeness, mean rating of representativeness was calculated for sensory and emotional pain words. The sensory score was subtracted from the emotional score to compute emotional response to pain relative to the sensory experience.

    Immediately post-intervention

  • Emotional response to pain-related images

    Participants were presented twenty pain-related images, and asked to rate the extent to which they felt negative emotions while viewing the image. After a fixation cross presented for 500 ms, a pain-related picture was presented for 6000 ms. This was followed by another cross presented for 500 ms then numbers from 0 (not at all negative) to 10 (very negative) was displayed. Participants were instructed to look at the picture on the screen then to rate their negative emotion from 0 (not at all negative) to 10 (very negative). The mean rating of emotional response to pain-related images was calculated for each participant.

    Immediately post-intervention

Secondary Outcomes (7)

  • Fear of Pain

    Immediately post-intervention

  • Anxiety

    Baseline

  • Depression

    Baseline

  • Emotional response to average clinical pain

    Immediately post-intervention

  • Pain severity

    Baseline

  • +2 more secondary outcomes

Study Arms (4)

Benign CBM-I - Chronic pain

EXPERIMENTAL

Chronic pain participants randomised to receive benign CBM-I, which uses the Ambiguous Situations Task to train participants to neutral meanings of ambiguous scenarios.

Behavioral: Benign cognitive bias modification for interpretation

No CBM-I - Chronic pain

NO INTERVENTION

Chronic pain participants randomised to the 'no CBM-I' condition complete the Ambiguous Situations Task without any form of bias modification.

Benign CBM-I - Healthy

EXPERIMENTAL

Healthy participants randomised to receive benign CBM-I, which uses the Ambiguous Situations Task to train participants to neutral meanings of ambiguous scenarios.

Behavioral: Benign cognitive bias modification for interpretation

Pain-related CBM-I - Healthy

OTHER

Healthy participants randomised to receive pain-related CBM-I, which uses the Ambiguous Situations Task to train participants to painful meanings of ambiguous scenarios.

Behavioral: Pain-related cognitive bias modification for interpretation

Interventions

Benign cognitive Bias Modification for Interpretation (CBM-I) trains participants to interpret ambiguous information as neutral or benign rather than pain-related.

Benign CBM-I - Chronic painBenign CBM-I - Healthy

Pain-related cognitive Bias Modification for Interpretation (CBM-I) trains participants to interpret ambiguous information as pain-related.

Pain-related CBM-I - Healthy

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Experience musculoskeletal pain (pain in muscles, bones, joints, tendons, or ligaments) that has lasted for at least the last 3 months before enrolment in the study
  • Have visited a healthcare professional for their pain
  • Aged 18-70 years
  • Normal or corrected to normal vision

You may not qualify if:

  • Any known reading difficulty
  • Aged 18-70 years
  • Normal or corrected to normal vision
  • Experience frequent or continuous pain for the past three months before enrolment in the study
  • Currently experiencing pain
  • Any known reading difficulty

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Southampton

Southampton, Hampshire, SO17 1BJ, United Kingdom

Location

MeSH Terms

Conditions

Chronic PainCollagen Diseases

Condition Hierarchy (Ancestors)

PainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsConnective Tissue DiseasesSkin and Connective Tissue Diseases

Study Officials

  • Daniel E Schoth, PhD

    University of Southampton

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
Participants are not informed of the conditioned they are randomised to in this psychological intervention.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Two groups of participants (chronic musculoskeletal pain, healthy) were recruited, and within each group participants were randomised to one of two experimental conditions with a 1:1 allocation ratio with a parallel design. Participants with chronic musculoskeletal pain were randomised to benign CBM-I or no CBM-I, and healthy participants were randomised to benign CBM-I or pain-related CBM-I.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 4, 2024

First Posted

April 16, 2024

Study Start

November 17, 2020

Primary Completion

May 1, 2021

Study Completion

May 1, 2021

Last Updated

April 16, 2024

Record last verified: 2024-04

Data Sharing

IPD Sharing
Will share

Anonymised participant dataset that underlies the results reported in this article may be requested from the authors.

Shared Documents
STUDY PROTOCOL, SAP, ANALYTIC CODE
Time Frame
Twelve months following publication of the results.
Access Criteria
Email the study authors.

Locations